<?php
defined('YD_TRUE') or exit('Access Denied');
/*
// @author : lael
// blog : http://hi.baidu.com/lael80
// http://www.gzyd.net
// all right reserved.
*/
function formattime($time, $format = 'Y-m-d H:i:s', $default = '-'){
	if(empty($time))return $default;
	if(is_numeric($time))return date($format, $time);
	return strtotime($time);
}

function siteurl($params = array(), $host = true){
	$querystring = is_array($params) ? http_build_query($params) : $params;
	$url = '';
	if($host)$url = ((isset($_SERVER['HTTPS'])&&$_SERVER['HTTPS']=='on')?'https://':'http://').$_SERVER['HTTP_HOST'];
	return $url.YD_URL.($querystring ? "?$querystring" : '');
}

function issubmit($post = true){
	$json = strpos($_SERVER['HTTP_ACCEPT'], 'application/json') !== false || $_SERVER['HTTP_X_REQUESTED_WITH'] == 'XMLHttpRequest';
	if(!$post)return $json;
	return $json || $_SERVER['REQUEST_METHOD'] == 'POST';
}

function exitjson($code = 1, $msg = '操作执行成功', $data = array()){
	echo json_encode(array('code' => $code, 'msg' => $msg, 'data' => $data));
	exit;
}

function redirect($params = array(), $host = true){
	@header('location:'.siteurl($params, $host));
	exit;
}

function checknull($var, $default = ''){
	if(is_null($var))return $default;
	return $var;
}

function show_message($msg, $redirect = 'javascript:history.back(-1);', $timeout = 10000, $isexit = true){
	$html = file_get_contents(YD_PATH.'data/resource/show_message.html');
	echo str_ireplace(array('{$msg}', '{$redirect}', '{$timeout}'), array($msg, $redirect, $timeout), $html);
	if($isexit)exit;
}

function log_message($var, $key = ''){
	file_put_contents(YD_PATH.'data/logs/'.date('Ymd').'.txt', ($key ? $key.": " : '').date('Y-m-d H:i:s')." ---> \n".var_export($var, true)."\n\n\n", FILE_APPEND);
}

//href链接是用js替换的
function showpage($params = array(), $shownum = 10){
	$html = '共 '.$params['total'].' 条记录 ';
	if($params['pagenum'] <= 1)return $html;
	if($params['page'] > 1){
		$html .= '<a href="javascript:;" data-page="1">&lt;&lt;</a><a href="javascript:;" data-page="'.($params['page'] - 1).'">&lt;</a>';	
	}
	$first = max(1, $params['page'] - 4);
	$last = min($params['pagenum'], $first + $shownum - 1);
	if($last - $first < $shownum - 1){
		while($last < $params['pagenum']){
			if($last - $first == $shownum - 1)break;
			$last ++;
		}
	}
	if($last - $first < $shownum - 1){
		while($first > 1){
			if($last - $first == $shownum - 1)break;
			$first --;
		}
	}
	if($first > 1)$html .= '<a href="javascript:;" data-page="'.($first - 1).'">...</a>';
	for($i = $first; $i <= $last; $i ++){
		if($params['page'] == $i){
			$html .= '<strong>'.$i.'</strong>';
		}else{
			$html .= '<a href="javascript:;" data-page="'.$i.'">'.$i.'</a>';
		}
	}
	if($last < $params['pagenum'])$html .= '<a href="javascript:;" data-page="'.($last + 1).'">...</a>';
	if($params['page'] < $params['pagenum']){
		$html .= '<a href="javascript:;" data-page="'.($params['page'] + 1).'">&gt;</a><a href="javascript:;" data-page="'.($params['pagenum']).'">&gt;&gt;</a>';	
	}
	return $html;
}

function add_mqg(&$var) {
	if(is_array($var)){
		foreach($var as $k => $v){
			if(is_array($v)){
				add_mqg($var[$k]);
			}else{
				$var[$k] = addslashes($v);
			}
		}
	}else{
		$var = addslashes($var);
	}
}

function strip_mqg(&$var) {
	if(is_array($var)){
		foreach($var as $k => $v){
			if(is_array($v)){
				strip_mqg($var[$k]);
			}else{
				$var[$k] = stripslashes($v);
			}
		}
	}else{
		$var = stripslashes($var);
	}
}
?>